The names of the parts of the door lock include but are not limited to the following:
Cylinder, a part that has been assembled with the lock cylinder and other parts.
Cylinder body, a main body without the lock cylinder and other parts.
Cylinder, a part that generally has a key slot and can directly transmit the action given by the key.
Key, a part that generally has a key slot and a tooth, for opening and closing the lock.
Pin, a part installed in the cylinder pin hole, which plays the role of changing the tooth.
Driver, a part installed in the cylinder pin hole, which plays the role of pinning the lock cylinder under the action of the spring.
Deformed pin, a part installed in the cylinder pin hole, which plays the role of preventing foreign objects from opening the lock.
Flat tumbler, a sheet-like part with different numbers of teeth.
Spring, named according to the part it acts on, such as pin spring and leaf spring.
Filling plate, a sheet-like part that closes holes and grooves.
Ring washer, a ring-shaped part that limits the movement of related parts within a certain range.
Washer, a sheet-like part that limits the movement of related parts within a certain range.
Cylinder collar, a ring-shaped part that is generally used to decorate and cushion the lock.
Pin, named according to its function, such as the lock pin.
Spindle, a part that is connected to the lock cylinder and plays a transmission role.
Lock body, the main part of the lock with installed parts.
Lock case, the outer shell of the lock body for assembling parts.
Bolt, a part that directly plays a locking role in the lock, is divided into square bolt, oblique bolt, round bolt, hook bolt, etc. (parts or components) according to its shape.
Follower, a part that directly plays the role of pulling the bolt.
Striking plate/striking plate: a box-shaped part that holds the bolt when closed.
Plate washer: a plate-shaped part that limits the movement of other parts within a certain range.
Handle: a part that is generally used to pull the door or operate the bolt.
Lever handle: a part that is turned to drive the bolt to open and can reset itself when the external force is removed. According to their shapes, they are called ball handles, shuttle handles, tooth handles, etc.
Knob: a part that drives the bolt to open and close by twisting the part, and cannot reset itself when the external force is removed.
Stop button: a part that drives the safety part by pressing, twisting, or translating.
Safety plate: a plate-shaped part that controls the bolt to retract and prevents it from being pulled out (pried).
Surface plate: a part installed on both sides of the door for decoration and protection.
Base plate is a part installed on the lock to fasten and cover the door.
The above are the names of the main parts of the door lock and their functions. These parts work together to ensure that the door lock can safely and effectively complete the opening, closing and locking functions.